Q & A

Welcome to the Planet Natural Garden Forum! Whether you’re new to gardening or have been at it for some time, here you can search existing messages for answers to your questions or post a new message for others to reply to. If this is your first visit, please read over our forum instructions carefully before posting. Enjoy!

There are several different species of Bt available for controlling insect pests. Bt israelensis (Bt-i) works to control mosquito, black fly and fungus gnat larvae. While Bt kurstaki (Bt-k) — The Monterey Bt product — is ideal for use against leaf eating caterpillars like tent caterpillars, cabbageworm, gypsy moth and tomato hornworm. I’ve attached a link that will explain the different types of Bt, as well as a link to our most popular Bt for mosquitoes.